[ APP Remote Control ] -Download smart life /Tuya smart APP on your phone&Tablet to control the radiator thermostat valve anywhere/anytime. [ Hand Free Voice Control ] -Compatible with for , for home ,a simply to voice control the TRV. [ Programmable Weekly Schedule&Time Period ] -7day programmable weekly schedule ,4 time period/day can be setting on app. [ Family Share Function ] -You can share the TRV to your family with the limited right,create a smart home together with your family member. [ Linkage Function ] -It can linkage with other smart appliance in your home to create smart theme like leave home mode,back home mode,dinner mode,sleeping mode . [ Child Lock Function ]-Child Lock Function avoid kid`s operation on it. Make sure your home in smart and safe status. [ Group-Control Function ] -TRV can be set in group with valve in different room, realize group control function in special scene. APP:Smart Life/Tuya Smart Voice Control: for , for Home Frequency:2.4GHz Battery:2 * AA Alkaline Battery (LR6) Battery life:Half a Year Temeprature range:5-60 Temperature Display:0-60 Constant temperature tolerance:1 Temperature Sensor: Wireless Protocol:Zigbee 3.0 Connection:M30x1.5mm &&1.5 MAX travel:6mm Working temperature:-10- 40 Working environment:Indoor Anti-:Yes Programmable:Yes Tuya Smart Thermostatic Radiator Valve TRV Adapters for money, comes with 6 valve adapters Comes with 6 different types of valve adapters, suitable for 97% of the radiator valve interfaces on the market. Color: White Material: plastic Package Contents: 1 * Zigbee Gateway Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.